Korean Journal of Chemical Engineering, Vol.26, No.3, 770-774, May, 2009
Physical and electrochemical properties of lithium-doped 1-butyl-3-methylimidazolium salts
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Two well known room temperature ionic liquids (RTILs), 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIm][BF4]) and 1-butyl-3-methylimidazolium iodide ([BMIm][I]), were synthesized. Their physical properties such as reflective indices, densities, viscosities, heat capacities, and heats of dilution were measured. The overall properties of [BMIm][BF4] obtained after two-step reactions were superior to those of the IL with a halide anion. The incorporation
of lithium ions using lithium tetrafluoroborate (LiBF4) in each IL was carried out and ionic conductivities as a function of temperature and Li ion concentration were investigated. The isothermal conductivity graph showed a parabolic curve shape suggesting that the maximum values exist at a specific concentration condition while they continuously increased as the temperature increased. The conductivities reached as high as 10^(-3) S·cm-1.
- Marsh KN, Deev A, Wu ACT, Tran E, Klamt A, Korean J. Chem. Eng., 19(3), 357 (2002)
- Kim KS, Shin BK, Lee H, Ziegler F, Fluid Phase Equilib., 218(2), 215 (2004)
- Kim KS, Shin BK, Lee H, Korean J. Chem. Eng., 21(5), 1010 (2004)
- MacFarlane DR, Huang J, Forsyth M, Nature, 402, 792 (1999)
- MacFarlane DR, Forsyth M, Adv. Mater., 13(12-13), 957 (2001)
- Forsyth M, Huang J, MacFarlane DR, J. Mater. Chem., 10, 2259 (2000)
- MacFarlane DR, Meakin P, Sun J, Amini N, Forsyth M, J. Phys. Chem. B, 103(20), 4164 (1999)
- McFarlane DR, Sun J, Golding J, Meakin P, Forsyth M, Electrochim. Acta, 45(8-9), 1271 (2000)
- Forsyth S, Golding J, MacFarlane DR, Forsyth M, Electrochim. Acta, 46(10-11), 1753 (2001)
- Fuller J, Breda AC, Carlin RT, J. Electroanal. Chem., 495 (1998)
- Kim KS, Choi S, Demberelnyamba D, Lee H, Oh J, Lee BB, Mun SJ, Chem. Commun., 828 (2004)
- Kim KS, Park SY, Yeon SH, Lee H, Electrochim. Acta, 50(28), 5673 (2005)
- Kim KS, Park SY, Choi S, Lee H, J. Power Sources, 155(2), 385 (2006)
- Choi S, Kim KS, Lee H, Oh JS, Lee BB, Korean J. Chem. Eng., 22(2), 281 (2005)
- Cha JH, Kim KS, Choi S, Yeon SH, Lee H, Kim HS, Kim H, Korean J. Chem. Eng., 22(6), 945 (2005)
- Kim KS, Lee H, J. Chem. Eng. Data, 47, 216 (2002)
- Hagiwara R, Ito Y, J. Fluorine Chem, 105, 221 (2000)
- Bonhote P, Dias AP, Papageorgiou N, Kalyanasundaram K, Gratzel M, Inorg. Chem., 35(5), 1168 (1996)
- Suarez PAZ, Dullius JEL, Einloft S, Souza RFD, Dupont J, Polyhedron, 15, 1217 (1995)
- Joan FD, Jean PB, Tetrahedron Letter, 42, 6097 (2001)